The T&S Brass 000789-20M Removable Insert Cold (Left Hand) 3/8″ ID is a precision-engineered component designed for specific plumbing applications. This insert features a 3/8-inch inner diameter and a 7/8-inch outer diameter, making it suitable for a variety of water control systems requiring components of these exact dimensions. It is designed specifically for use with the Eterna cartridge, ensuring compatibility with this trusted brand. The inclusion of a bottom washer enhances its sealing capabilities, reducing the risk of leaks in commercial or residential plumbing systems. Known for its low lead content, this insert adheres to stringent safety standards, making it a reliable choice for environments where health and safety are paramount. Furthermore, its NSF certification reinforces its compliance with public health guidelines, ensuring peace of mind for installations that require adherence to these standards. Sold in master packs containing two units each, the T&S Brass 000789-20M is an optimal choice for both small-scale and large-scale plumbing projects. Its durable construction and precision design make it a valuable asset for professionals in industries ranging from hospitality to healthcare, providing a dependable solution in water management systems that demand top-tier reliability and performance.